Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Welsh llwyn
Welsh lwyn (link)
Middle English loyne (derived)
Old French loigne (borrowed)
Latin lignum (borrowed)
Latin lumbus (derived)

English Oystermouth (mention)
Welsh llwynog (affix)
Welsh dryslwyn (affix)
Welsh prysglwyn (compound)
Irish léana (cognate)